Welcome to my website!

• I’m an applied environmental economist focusing on two major environmental issues, ambient air pollution and climate change.

• I’m an Assistant Professor at CREST and ENSAE in Paris. I’m also a research affiliate at the IFS, Misum and the IPP.

• My current research seeks to answer three broad questions, mostly in the European context:
  1. What are the societal costs of air pollution? including health and non-health effects.
  2. To what extent do climate policies deliver health co-benefits? with an emphasis on the transport and electricity sectors.
  3. What are the determinants of support for green policies? with an emphasis on social norms and identity.

• Don’t hesitate to contact me at marion.leroutier(at)ensae.fr, and see my cv here

• News:
  • December 2025: Presenting at seminar series of KU Leuven, Nanterre university
  • November 2025: Updated WP as IFS working paper “The Gender Gap in Carbon Footprints: Determinants and Implications”
  • November 2025: Organizing and speaking at “Pollution and Health” session at 2025 Journées de l’économie in Lyon (Replay in French)